Steam-generator



(No Model.) 3 SheetsSheet 1. J. A. BNO.

STEAM GENERATOR.

Patented June 4, 1889.

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(No Model.) 3 Sheets- Sheet 2.

- J. A. BNO.

STEAM GENERATOR.

No. 404,524. Patented June 4, 1889.

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(No Model.) 3 Sheets--Sheet 3. J A BNO STEAM GENERATOR.

' No. 404,524. Patented June 4, 1889.-

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*UNiiED STATES PATENT OFFICE.

JOSEPH A. ENO, O-F-NEWARK, NEW JERSEY.

. STEAM-QENERATOR.

T SPECIFICATION forming part of Letters Patent No. 404,524, dated June 4, 1889.

Application filedOctober 13, 1888. Serial No. 288,170.

(No model.)

1'0 all whom itmay concern? Be it known that I, JOSEPH A. Eno, a citizen of the United States, residing at Newarkfin' the county of Essex and State of New reference being had to the accompanying drawings, and to letters of reference-marked thereon, which form a part of this specification.

The object of this invention is to providea generating and 'circulatin g device for marine and other boilers havingintegral fire-chambers, which may readily be disconnected and removed from the boiler for the purpose of steam-generating devicefo repair or forother purposes, to secure a. posi tive circulation of the water through the boiler, so that sedimentary deposits will not be allowed to form therein, and to facilitate theformation of steam, and to secure other specific results, forth.

as willbehereinafter "set The invention *consists'--i I arine,;Galloway, Cornish, and :oth erdike-boilers, substantially as will hereinafter setforth, and finally embodied inth e clauses of the claim.

7 Referring to the accompanying drawings,

' in which like letters of reference'indicatecorresponding parts in each'fof the several figures, Figure l is a front elevation of a boiler embodying my improvements. Fig. 2-is avertical longitudinal section of the same, taken on line 00. Fig. 3 is a detail plan showing certain water-pipes in detail as they are arranged to be inserted in the furnaceeof the boiler. Fig. 4 is an elevation of a front plate for one of said flues or tubes, showing the door to the fire-chamber and ash-pit therein; and Fig. 5 illustrates a modified construction of the device.

In said drawings, a indicates the body of the boiler, which is of the marine, Galloway, Cornish, or Lancastershire, or other types of boilers having internal fire-chambers entirely surrounded by the water-chamber.

b 1) indicate the furnace, which extends he improved through the front of the boiler to a central or I improved circulating-pipes, consisting of main pipes e e e, which extend longitudinally through the fire-chambers f f of the furnaces, the tubes e e lying toward the bottom of the flue at each side of the center, and the third main pipe 6 lying centrally at the top of the flue, as indicated in Figs. 1, 2, and 5.

The lower pipes c 6 connect at the front ends thereof with supply-pipes g 9, connecting with the lower part or bottom of the main water-chamber of the boiler. The several supply-pipes preferably connect with a common supply-pipe h, having in its course an enlargement 2', below which is arranged a muddrum or sediment-receptacle j, connected to said enlargement by a neck 70, through which the sediment drops as it is carried onward by the water. The said enlargement also receives a pipe Z, Fig. 2, which connectswith the bottom of the boiler, as at "m, Thus the sheets of the boiler are perforated but once to furnish the several supply-pipes with water.

The supply-pipes are each provided with valves 41, by means of which the circulation of water through said pipes may be cut off.

A joint 0 is formed in each of the said supply-pipes at or between the valve n and the feed-pipe-e,.by means of which the same may be readily separated after the circulation has been cut off for purposes of removal or repair.

The feed-pipes e e, which are arranged in the fire-chamberf, are connected with the upper central pipes e by small generating or heating pipes 19, which are disposed so that they lie arched to conform to the top of the chamber f and occupy a minimum of space therein.

I prefer the arrangement shown in Fig. 1, in which the said pipes p are shown to extend from one of the pipes e upward. and then horizontally over toward the opposite pipe 6, forming a grate-bar q, and then to extend upward and curve, as at 8, toward the central pipe e, being again bent, as at r, Fig. 3, just IOC before joining with said central pipe to form a connection, so that the water and steam will be forced in said central pipe toward the desired point of exit at the front end of said central pipe.

The center pipes 6 connect with upwardly extending pipes i, which convey the water the several pipes by means of the valves '11,

and w, unjoint the said pipes at 0 and 'u, and

draw out the pipes Within the flue or firechamber. This can readily be done in any one flue without disturbing the operation of the other parts of the boiler or requiring the attendant to enter the flue to make the disconnections, the work being performed ontirely from the front.

If I desire I can dispense with the tubular grate-bars q and employ an ordinary grate, as

illustrated in Fig. 5.

I may employ an ordinary'grate in connection with the one formed of the pipes 11, as illustrated in Fig. 3, where 10 indicates a grate supplementing or filling out the space not 00- cupied by the tubular pipes.

In removing the pipes after detachment, the pipes e serve as runners for holding the parts together and preventing undue strain from coming upon the connecting-pipes p, as will be understood.

In operation the water passes upward from the colder part of the boiler into the pipes e, which are large enough to feed all the connecting-pipes p. der and then over the fire, as indicated in Fig. 1, being there heated and to some extent converted into steam, and thus having its movement accelerated to a considerable degree. It then is forced into the center pipe 6', the water entering from opposite sides thereof and being given a forward movement by the turn 0" in the pipe, so that the water i is caused to pass forward out of the pipe 8 and upward through the pipes 15 with great force and at a high temperature.

From thence it passes unimproved steam-generator combining therein Thus the uniform, so that the dangers resulting from unequal expansion are avoided or greatly reduced. j

Having thus described the invention, what I claim as new is 1. The improved generating and circulating device for boilers, containing therein longitudinal pipes e 8, Supporting grate-bars q, and generating-pipes p, the latter being connected to a pipe (2,, supply-pipes g, and return-pipes t, adapted to convey the water from the bottom of the boiler to said generating-pipes and from thence to return the same to the boiler, substantially as and for the purposes set forth.

- 2. In combination with a boiler a,having a furnace b, longitudinal pipes e e c, connecting-pipes p, curved and conforming to the fire-chamber, jointed supply-pipes g, connecting with the bottom of the boiler, and jointed pipes t, connecting with the body of the boiler, all said parts being arranged and combined substantially as and for the purposes set forth.

3. In combination with the body of the boiler, pipes e e, generating-pipes bent to form a grate q and bent upward to connect with a pipe e, lying at the top of fire-chamber, and said pipe 6 and pipes g andt at the front of the boiler and connecting with the bottom and top thereof, respectively, and valved and jointed, substantially as and for the purposes set forth.

4. In combination with a boiler and suitable supply and return pipes, longitudinal pipes e e and e, and generating-pipes 1), extending from said pipes e upward and over the fire-chamber to the pipe 6', and being bent, as at agto facilitate the movement of the water in the pipe 6', substantially as and for the purposes set forth.

5. In combination with a main boiler, the

jointed pipes g and t, connecting, respectively, with the bottom and top of the boiler,

lon itudinal )i es 6 e and e eneratin b i b pipes 19, bent to form gratings q and connecting with said pipes e e and c, all substan tially as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 6th day of October, 1888.

JOSEPH A. ENO.

\Vitnesses:

CHARLES H. PELL, (3. H. BALDWIN. 

